plant evolution

My Research

 

Flowering plant evolution: systematics, speciation, natural history

 
 

Genomics and systematics

Monarda (Lamiaceae)

  • First reference genomes for Monarda: M. citriodora (diploid) and M. didyma (tetraploid).

  • Genus-wide whole genome sequencing for systematics and historical+contemporary reticulation.

Phlox (Polemoniaceae)

  • Association study + signatures of selection surrounding key floral color loci.

  • Demographic modeling for system of three shallowly diverged annual species.

Pedicularis (Orobanchaceae)

  • Biogeography of P. cranolopha in the Hengduan Mountains in Sichuan, China.


Methods and theory

Multispecies coalescent model + recombination

  • Simulation study showing influence of species tree on genealogical turnover along the genome.

  • Deriving waiting distance to genealogy change along the genome, given an arbitrary species tree.

Software tools

  • ipcoal: a python package enabling phylogenomic simulations

  • simcat: a machine-learning method to infer historical reticulation from SNP data.


Community science, natural history, taxonomy

Computational tools and community science data for large-scale natural history

  • Delayed flowering or red flowers in response to hummingbird migration

  • Flower color divergence in Monarda fistulosa

Taxonomy in Monarda and Phlox